Mẫu chuẩn thành phần kim loại Brammer BS 193
Brammer Standard Company, Inc.
Certificate of Analysis
B.S. 193
Reference Material for High Manganese Stainless Steel
Certified Estimate of Certified Estimate of
Value Uncertainty Value Uncertainty1 2 1 2
Analysis listed as percent by weight
C 0.104 0.003 N 0.37 0.01
Mn 12.11 0.10 Nb 0.014 0.002
P 0.018 0.002 Sn 0.004 0.001
S 0.002 0.001 Ti 0.003 0.001
Si 0.66 0.02 V 0.107 0.005
Cu 0.088 0.005
Ni 1.82 0.02
Cr 18.48 0.10
Mo 0.21 0.01 Informational values3
B 0.0007 0.0001 Al (0.003)
Ca 0.0020 0.0004 O (0.004)
Co 0.028 0.004 W (0.007)
The certified value listed is the present best estimate of the true value based on the results of an1
interlaboratory testing program.
The uncertainties listed are based on value judgments of the material inhomogeneity and possible bias in2
the determined analytical values. No attempt is made to derive exact statistical measurements of
imprecision because several methods were used in the determination of most constituents.
Data in parentheses are not certified and are provided for information only.3
The requirements of ISO Guide 31 and ISO Guide 35 were generally followed for the preparation of this
reference material and certificate of analysis. This is a reference material as defined by ISO Guide 30.